Adjustable nozzle



July 1o, 1951 C, R CURHS 2,560,279

ADJUSTABLE NOZZLE Filed Aug. 7, 1948 2 Sheets-Sheet l July l0, 1951 c.R. CUR-ns 2,560,279

ADJUSTABLE NozzLE Filed Aug. 7, 194s 2 Sheets-Sheet 2 .55 54 46 155.6 @Li-i2? 5315 62 ANL@ 2% I: 'I ff fLV 41 4.9 .50 5;, l

* /fcf Hm JET Patented July 10, 1951 [TED *S1 TTE S PATENT OF F I C EDJUSTABLE NOZZLE Clarence-Ri CurtisLombard; 'assignor to'F. H. #SmithManufacturing` 00j.,v Chica-go, Ill., vay co1'- normanni-Iliinois In theart of adjustableflnozzles;many types of nozzleiconstructionshavelbeen-propose'dandi employe'dfor specic purposes, uHowever, eachofthe "varied and complicated. Ynozzle A`structures of the prior. arthasbeen limited in itsapplication toaa v.relatively.smallfs-number ofspeci-o luses". The present inventionnow provides animproved, simple,easily .manufactured and inexpensive forme of adjustable. nozzle, the:novel features of whichl may be employed ini nozzles: ofwidelyvary-ving construction and use,` For example. therpresent inventionis'particularly described, herein as; embodied in a shower head,but-,fit should be appreciatedthat the samenozzle construction may beemployed in a fountain spray or as av fuel nozzle in heat` exchangeapparatus employingliquid iuel.

It is, therefore, an important object of the .presentinvention to.provide an improved nozzle capable-of being utilized fora number ofdifferent uses,'the nozzle beingsimple and 'ruggedinconstruction-andadapted for inexpensive produc- I tion.

Itis. afurther object. of this.' invention "to. provide a nozzlein whicha member extendingtransversely to theiiow of water through "the 'nozzleis provided to overlie shoulders extending into the iiuid stream.,r theposition'ofsaid member relative tov said 'shoulder determining thecharacter 'of the fluid stream from the nozzle.

`Itis `a yet further object'of `the'present invention to provide an`adjustable nozzle of simple and inexpensive "construction, the nozzlebeing capable of completely modifying the character'of the streamissuingtherefrom'upon very limited adjustment of the nozzle.

It is still vanother object'V of the present invention to provide anYadjustable nozzlein which the character of the `stream issuing therefrommay be modified by relative adjustment of 'fa' plurality of parts of thenozzle. Y

Otheiand further objects of this invention will become apparentv fromthe disclosures inth'efspecification and the accompanying` drawings.

On the drawings: l e v AYFigure l1 is an elevational view ofthe nozzleofthe present invention Figure 2iis van enlarged cross-sectional VAview ofthe nozzle of-Fig'ureIltakenonthe Aplan'efIl-II ofFigurel; y

Figure 3 is an exploded sectional view illu-s- 2. trating theconstruction and the assembly ofthe nozzle of the present invention;

i Figure 4 is a cross-sectional view taken along the plane IV-'IV ofFigure 2;

Figure. 5- is a schematic cross-sectional view of the Hfluid directingmembers of the nozzle ofFigu're 1 showing'tlie members at thezero`position;

Figurel'is a, schematic plan view 'showing the fluid directing membersat an' intermediate position;

`Figure'7 is a schematic Vcross-sectional view taken on the` planeyVlI---VII'of'Figure 6;

4vligu're 8 is a. schematic perspective view similar to Figure` 6; and

Figure 9 is a schematic plan view showing. the fluidy directing membersvat the right-angle. position.

`As"shown on the drawings:

As vbestshown in Figure 1, theadjustable nozzle of .thepresent/invention, indicated generally by the'reference vnumeral I and'illustrated as employed in a shower head, comprises essentially ap'ipeiitting Il, `a ball member I2, ahousingf` f3,v anda nose i I'4.Thetting I I ,"'thehousing I3 andthe nose I4 are'each provided withknurledv portions to facilitate the grasping of these portions of thenozzle by the hand ofthe operator both during the assemblyand the use ofthe nozzle.

More'particularly, the pipe fitting I I is provided with acentralthreaded aperture i5- so-that the nozzle; Hl may be secured to asuitablesource of liquid-'under pressure. The pipe tting H is alsoprovided with a lower vcentral, aperture I1 in ful-1 communication withthe threaded aperture i6.

VThe ball member I2 is provided with a centrai upwardly extendingportionI8. contoured to provide a shoulder |9,-and above the shoulder I9providing an upstanding cylindrical portion 2li of slightly smallerdiameter than the aperture I7 in the-pipe fitting Il. Ball member I2 isrprovided with a centrally vextending, aperture 2l flared outwardly atitsupper end asat 22. As illustratedin Figure 2, the upstanding portion 2i)of the ball lmember I2 is. adapted to be received by the aperture Il ofthe pipe fitting II With the shoulder I 9 resting against the lowersurface Ila of the pipe fitting. That part of the portion 2E! extendinginto the pipe fitting II is peened outwardly to overhang the aperture liretaining the portion 20 in position Within the aperture I7 with theball I2 depending from fitting II.

A YAsshown in Figures 2 and 3, aportion ofthe aeodzve riphery of theball |2 to permit swivelling mover ment of the entire housing I3 so thatthe stream of liquid passing through the nozzle may be dil rected asdesired. The aperture l24 is internally v threaded as at 21 intermediatethel extreme endsv oi the nut 23. Nut 23 carries a depending skirtportion 23a extending beyond the threads 21.

A body portion 28 externally threaded about its upper end as at 29 isadapted to be threaded into the nut 23, the threads 29 engaging theinternal threads 21 of the nut 23. The body 28 is centrally apertured toprovide 'internal shoulf-f ders 30, 3| and 32, dening stepped apertures39a, 3|a and 32a respectively, as shown in Figure 3- Free passage ofliquid through the body portion is provided by the aperture 34 in thelower sur.- face of the body 28 and in communication with the aperture32a. The shoulder 32 is formed with an annular upstanding ridge 33surrounding the aperture 34 in the lower extremityof the body member28.The body 28 is also provided with an external shoulder 3S positioneddirectly beneath the threads 29.

A washer or sealing ring 31 of rubber or suitable plastic material suchas nylon -is adapted to be positioned in the aperture 30a of the bodyportion 28, the washer being in surface contact with the lower portionof the ball I2 when the body member is threaded into the nut 23. Anarie' nularring 33 is adapted to be Seated on the shoulder 3| of bodymember 28 beneath the wash-v er 31, the upperextremity of the ringbeingin sealing contact with the lower surface of the washerrwhen thenozzle is assembled as shown in Figure 2. The ring 38 is provided with aconical internal face 39 about its lower extremity, the ring havingdiametrically opposed recesses 40 formed in the face 39. and extendingupwardly into the body of the ring.

A sleeve 4| carrying an outwardly extending" annular shoulder 42 at itsupper edge is adapted to be inserted within the body portion 28. The.shoulder 42 is provided with a depending annular ridge 43 correspondingto the ridge 33 of the shoulder 32. A washer 44'is adapted to bereceived between the shoulders 32 and 42 to insure a liquid-tight sealtherebetween. The sleeve 4| is exteriorly threaded as at 46 ina-position adjacent its lower extremity. The sleeve l4I is also providedwith an aperture 41 in its upper extremity, the aperture 41 slopingdownwardlyn and inwardly as at 48 to dei-lne a restricted oriflee 49.Orifice 49 is in full communication with a plurality of steppedapertures 5B, 5| and 52 formed in the sleeve 4| below the orice 49. TheYstepped apertures 5|]-52 increasey in size beyondv the orifice, theaperture 52 being larger than the aperture 5I and the aperture 5| beinglarger than the aperture 59. The sleeve 4| is also provided withopposing upstanding, segmental shoulders 53 formed integrally with thesleeve 4| and defined by removing diametrically opposed portions of thesleeve 4| about the periphery of the aperture 41.

' The plate 54 is adapted to `be seated on the 4 shoulders 53 in aposition directly overlying the restricted oriiice 49. The plate 54carries integral upstanding projections 55 of suitable size to bereadily received by the slots 40 formed in the ring 38. The plate 54,.asbest illustrated in Figure 4, extends transversely across the aperture32a formed in the body portion 28 and has a pair of curved segmentalsides 54h and'54c having a radius of curvature approximately equaltothat of the shoulders 53 and a pair of parallel, oppo- Lsitely disposedstraight sides 54d and 54e. The

lplate 5.4,.is movable upon the shoulders 53, the movementY of thesleeve 4I relative to the slotted ring38 causingnrelative movementbetween the vplate 54 andthe shoulders 53.

Rotationalmovement of the ring 38 within the nut 23 is prevented by thesnug engagement of the washer 31v against the periphery of ball I2 andof the ring 38 against the lower surface of the washer. The ring 38,bottomed on shoulder 3|, is thus heldv against rotationnponthreading thebody 28 into the nut 23. By preventing rotation of the ring 38, anyrmovement ofthe sleeve 4| will cause relative movement between". theshoulders 53 and plate 54. Y

The nose portion I4 of the nozzle assembly is centrally apertured as at56,v the aperture 56 beingconcentric with and smaller in diameter thanthe Yaperture 34 `of the body `member 28. The aperture 59 iscounterbored a'ndinternally threaded Vas at 51 Ato threadedly receivethe threads 49 ofthe sleeve 4|. The nose I4 is threaded on the sleeve 4|until the lower surface 4|a, of .the sleeve abuts shoulder 59 of thenosev I4 dened at the bottom ot counterbore 51, thus providing a` rigidconnection ofrnose member|4 and sleeve 4| for co-ro'tation."A springwasher 6U Vis provided between -the nose I4 andthe under surface or thebodyl member 28 to permit relative rotational movement therebetween andto-mantain shoulder seats 33 and 43 in sealing contact with washer 44. f

Theeeasel and economy of 'rrianufaotulre.Y ofthe nozzle of the presentinvention will be readily apparent from the above description.Substantially all of the major components of the'nozzle are adapted forproduction by the use ofrstandard screw machine techniques and, withAthe exceptionof washers or seal rings,`may be prepared from .easilyworked, relativelysoft metals, such as brass. The exterior surfaces ofthe nozzle may preferablybe chromiumplated to improve the appearancerand durability of the nish. The construction makes the rapid Y and,simple assembly of the apparatus possible .while-.the .employment ofthreaded ttings facilitates repair and inspection of the device.

- In the operation of the nozzle of thepresent invention, the pipetting- I'I is threaded into a source of liquid underpressure,1such'as acity water line. The-.liquid under pressure ilowsfrom the pipe ttingthrough the aperture 2| of the ball I2. The liquid'flowing` through theaperture 2| passes through the central vaperture of the. ring 38toimpinge directlyupon the plane upper surface 54a. oftheA plate 54.AAny'leakage of liquid upwardly is prevented by the seal ring 431 whileany leakage between the flanges 42 and 32 is prevented-by the seal ring44 positioned therebetween. Following the striking ofthe upper surface54a, the 'liquid flows pastutheplate through the passageway provided bythe plate 54 andthe shoulders 53 and then through the aperture `41, andthe restricted orifice 49.- Followingthere-v steppedapertures orchambersk50-52,.inclusivegn the sleeve4 I: andthroughthe Ala-rger.aperture 56 to-fissue `fromthe nozzle l0. Y f

The characteristicsofthe `liquidstream issuing from the nozzle lmayf'fbe-variedlbyhmerely changingthe-setting ofthe p1atel54fwithrespect tothe sleeve-4l. rllhe-'changingmof the relative positions ofthese members Amay-be brought `about by the rotationof the sleeve4 Iwithin lthe housing |3-by-turning the nose in eithera clockwiseorcounter-clockwise direction; as -by grasping its exteriorknurledvsurface.

Figures 44` and-5,2 'the plate 54- is illustrated ascentered vuponthe-shoulders 53,` so that the side'surfacesi53a-53d of the shoulders 53.are parallelV to thestraight, opposing sides54d-and 54e`oplate'54. Theangle between thesidesurfaces Aof the'plate-and'the side surfaces of theshoulders is zero so this position is herein referred to as the zeroposition -Inv this position, the passages ll provided by the straightparallel sides ofv the platein cooperation with the shoulders-and thecircular-wall surfaces of the aperture 32a are open to their`` fullestextent. The liquid impinging uponthe upper surface54a of the-plate 54 isv*divided into afpair of separate streams -which 4iiowover the vsides ofthe plate into the passages l The liquid-*entering each of the radiallyopposed passages 6l is directed inwardly toward the axis ofA the sleeve43 as shown by the directional arrowsin FiguresA 5. That portion of thestream-entering each of the passages 6l will impingefupon the ystreamentering the opposing passage; The vdirection-of travel of the liquid issubstantially axial tothe axis of the cylindrical Asleeve4|,V sincesubstantially all of the forces lwhich might tend toimpart rotationalmovement'tothe stream vvlllbe nullied bythe direct impingement of thetwo streams ahead of the orice. 'I'he stream passing axially through theapertures 50,5! and 52 will tend to create asmall semi-evacuatedregionaround the upper, peripheral section of` the. chambers 5| and 52 with'the result that a portion ofl the streamwill be drawn into the `upperportions of these chambers to impinge against theside ywalls of thechambers.

It will .be s een by those skilled in the artr that the liquid. .streamvissuingV from the nozzle,y when the plate 54 and the shoulders 53 arein'zero position, vwill be substantially cylindrical due tothezpredominantly axial flow of the liquid. This type.` offcylindricalstream is to be desired for thetthorough drenching or wetting of aYrelatively small vcross-sectional area.

...'As illustrated in Figures 6 8, inclusive, :the sleeve ,4l may .berotated within'the nozzle so that'fthe-,side surfaces 'of' the shouldersunderlie the plate54 at an angle to the straight parallel sides of theplate. As shown in-the drawings, the sides 53a and 53d extend beyond theconnes of theplate` 54 and when viewed in plan elevation, as in Figure.6, the sides 53a and v53d forman obtuse angle with the straightparallel sides 54d and 54e of the plate 54. These positions .arehereinreferred to as the' intermediate positions.

:In any intermediate position, the passageways-6| are somewhatmorevrestricted than'in the zero position was illustrated in YFigure 4.However, the liquidimpinging' upon the upper surface '54aof theplate'54flows over the sides of -the `4r plate into Y"the passageways16| J as describedk `irl-connection with the parallels position.'

That fliquid .flowing 'past the .plate in .the .proximity of thesurfaces 53a and53d-will-bedeilected alongthesesurfaces and will.leavelv-the surfaces in a direction-substantiallyparallel lto thesurfaces to enter Uthe 'chamber 1.41 along abpath formed I substantiallyas -aprojectionk of. the Vsurface 53a or-53d. The? stream -ofIliquidstriking' the :circular -wall of the 'chamber 41, traveling inapath substantiallytangential to the-wall. of chamber4l, willfbe deectedintoa-circular path, the directional -movement impartedtothe stream -bythe shoulder surfaces tending to' direct thestream in a pathabout thevinner surface of the circular chamber 4l. The waterthusf circulated-lin 'a lsubstantiallyl circular Ipath-'within the chamber-41 forms avortex? upon contact withv the generallyconical walls 348, `the-axis yofthe yvortex being-identicalwith the axis oflthe sleeve 4l. That fluidventering the passageways 6| at points spacedifrom the surfaces 53a and53dI will also be deflected ina path-parallel-to the surface-53 by themotion of the liquid zadjacent the v surface. Thus, A substantially? allyof the liquid entering the chamber 4lv is rvdeilected into -acircular-path as shown in Figure.

The uid striking the surfacesf53b--and 53e of shoulders 53 will not flowdirectly intolthe chamber 41, since these surfaceswill'actasbarriers tothe normal flowof fluid into thefchamber A4l. The-flow of the mainliquid-stream through the passages 6! will-serve tosetup eddy currentsin the'confined Vlluid'as indicated by the directional arrows 62. l Y

Bothan axial and a" radial component of force are imparted tothe'fluidentering the orifice- 49. If a widely divergent spray isdesired, thehluid stream may -be released from thenozzle immediatelyfollowing its passage through` theforice 49. However, in most'applications,V as in a shower'head, it is 'desirable to' limit theconical spray angle,'as by the conically steppedlchamber 50-52. Thatportion of theV stream having the greatest rotational component ofvelocity is deflected into the main fluid'stream by the'conningfinteriorwalls of the chambersl soithat the conical conguration of the stream .islimited during its passage through that `portion of the nozzle lyingbeyond the orice.

"Thus, the cone of dispersionof the conical stream is determined by the'size and location of the stepped apertures l50--52 and theV liquidissuing'from'the nozzle Ill continues its conical path due to therotational force'imp-artedl-to the liquid. during its passage throughthe nozzle. The liquid is broken up into a nely divided stream by thecombination of the swirling motion, their direct impingement upon thesurfaces of the chamber 4l and the stepped chambers 543-52.. Thus, arneconical spray may be ob- ,tained from the nozzle l0 lby relativeadjustment of the plate and the sleeve to the intermediate f position,and the intensity of the fluid flow is determined by the specificposition of the shoulders relative-to the plate. Thisrlnely dividedlconical spray is to be greatly'desired when evenly distributed vlineshowers of liquid are desired, asin heat exchange apparatus employingliquid .fuel, in a shower head, or in a lawn sprinkling nozzle.

As shown in Figure 9, the sleeve maybe rotated relativev to the plate'54 to still another .position in which the shoulder surfaces 53a-53dare' each' at right angles to vtheirrespective adjacent straight .plate.sides 54d iand'r54e. :.Thefangle` esagera.

betweenV theiside surfaces ofthe; plate` and. the shoulder,surfaeesinthisinstanceis 9.0i and .this position A.herein referred to,las the fright angle position?.v furthe-right angle.. position.` fourPaS- sasestl of equal :,szeare .nrovidedatpaced pointsoverlyingtherestrctedrice, The liquid `fiowfentering each of` the passages 6lwill ,be deflected inwardly toward the axis of thesleeve as shown by thedirectional arrows in Figure 9e The stream portions, directedinwardly bythe `shoulder surfaces53a-53d, inclusive, will be directed at each otheras shown by the arrows andwill impnge diretlyiupon each. Qther- Due tothe t direct '.impingement .of the opposing streams, anyrotationalmovement imparted to anyone of theA streams will be nullified by theoppositely directed stream impinging directly thereon. Accordingly,a'straight now of liquid through the sleeve willbe obtained inthe mannerdescribed in connection with the zerolposition, and a relativelystraight, generally cylindrical flow streamwill be obtainedas describedabove.

It is to be noted that in each position of the plate relative to thesleeve, the characteristics of the stream are determined following thepassage of the streamA beyond the plate 54. The differentcharacteristicsV ofthe stream are obtained by the manner of now into thechamber 41 as determined by the positioning of the plate relative to theshoulder. Accordingly, the naturev of the upper surface 54a of the platehas relatively little effect upon the character of the stream, and theupper plate surface 54al may be of any desired shape.

1t is also to be noted that in each of the positions a relatively largepassage is provided for the fluid stream throughout all portions of thenozzle. Even in the 90 position, the passages 6l are relatively largewhile the height of thepassage, determined by the height of theshoulders 53, remains constant. This feature of the present inventionmakes possible the self-cleaning of the nozzle with the elimination offoreign particles which would clog the restricted opening ofconventional nozzles.

It should be 'understood that the design herein presented may be greatlymodified without affecting the efficiency or mode of operation of thenozzle.

For those applications where a single stream configuration is desirable,the design of the nozzle specifically described herein may be greatlymodifled and simplified while retaining the large fiuid passages. Thedesired characteristics of the nonadjustable stream may be selected fromthe wide variety of stream contours and intensities which may beobtained by changing the relative positions of the plate and sleeve orby changing the number and size of the conically stepped apertures50-52. Thus, it will be appreciated that the design of the sleeve 4l andof the plate 54 may be employed in many different types of nozzles withthe same beneficial results as obtained in the illustrated embodiment,since the present invention is not limited to the employment of theelement in a shower head such as that as has been hereinbeforedescribed. For example, it has been found' that this type ofconstruction may be advantageously employed in a nozzle for theintroduction of liquid fuel into a furnace or other heat exchangeapparatus. Also, by slight modification this construction may beemployed in a fountain nozzle or other similar device.

Accordingly, it will, of course, be understood that the 4various detailsof construction may be modified throughout a wide rangewithout depart-fin'ggfrom' the principles of. this invention, vand it is, therefore'notthe purpose `tolimitthe patent granted hereon otherwise y,thannecessitated by the Scopeof the appended `claims... Y. Y

I claimasmyinvention: Y i V; Y, .Y

1. In an adjustable spray .nozzle includingv a ball member secured to aAsource of fluid under pressure and having ,a centrally extendingaperture for the V,passage of fluid therethrough, the improvements of aninternally threaded nut mounted on said ball forl swivelling movement, ahollow body portion having one end threadedly retained `in said nut andhaving an annular inwardly directed shoulderformed at its other end, acylindrical sleeve havinganannular shoulder formed about one nendbottomedvon said Ybody shoulder and havingv a centrally locatedrestricted orifice formed internally of said sleeve, said sleeve havinga plurality of stepped apertures in communication with said orifice andincreasing in diameter downstream of said orifice, a pair of upstandingshoulders on said sleeve upstream of said orifice, an elongated plateseated'in flatwise contact with said upstandingrshoulders and disposedtransversely to the fluid fiow through the nozzle, and means foreffecting yrelative rotative movement between said plate and saidshoulders.

2. In an adjustable nozzle having a housing adapted `for the flow offluid therethrough, the improvements of a relatively flat elongatedplate positioned in said housing and extending transversely across thenow of fiuid with its longest dimension lying normal to the path offluid flow, a sleeve carried by said housing and disposed in the fluidflow downstream of said plate, said sleeve having an Y aperture directlyunderlying said plate, a restricted orifice intermediate the confines ofsaid sleeve and stepped apertures of increasing diameter downstream ofsaid orifice, supporting means carried by said sleeve and extendingupstream toward said plate into atwise contact therewith for supportingsaid plate within said housing and cooperating therewith to define apassage for fluid to said orifice, and means for effecting relativemovement between said plate and said supporting means in a plane lyingnormal to the path of fluid flow.

3. In an adjustable spray nozzle, a housing secured to a source ofliquid under pressure and adapted for swivelling movement, a sleeverotatably retained in said housing, said sleeve having a restrictedorifice for the flow of liquid therethrough and a plurality of steppedapertures of increasing diameter downstream of said orifice, a pair ofopposed shoulders on said sleeve-ahead of said orifice, and an elongatedplate seated fiatwise on said shoulders with its longest dimension lyingsubstantially normal to the path of liquid fiow through said housing,said sleeve being rotatable to move said shoulders into and out ofalignment with the longest dimension of said plate.

4. In an adjustable spray nozzle, a housing secured to a source ofliquid under pressure and adapted for the fiow of fluid axiallytherethrough, a baffle plate positioned in said housing and having anupper baiiie surface extending radially of the housing in a planesubstantially normal to the flow of fluid, means positioned in saidhousing defining a restricted orifice directly downstream of said plate,a pair of spaced separate supporting means carried by said housinginterposed between said plate and said orificeto support said plate andcooperating with said Vplate to define a remeans into and outofalignment-to vary the path` followed by; the lipid',streamjntroducedilintolsaid orice.

5. In .anadjustable Yn o?zle,means for controlling the ilow offluid'through the axial bore ofl an elongated housingcomprisingv ra-'baille membervpositioned withinthef-bore and extending radiallythereacross-.in a .plane normal to the -ilow. of iluid through.thehousing a second -member disposed insaid .housingl bore providing anarcuate rotatable, mounting. shoulder for supporting said'flrst memberand cooperatingthere- With-to define a passageway directly downstream.ofsaid baille member, and -means secured to said second member andextending exteriorly of said housing for effecting rotation of saidsecond member relative to said baille member.

6. An adjustable spray nozzle comprising a housing having an axial borefor the flow of fluid therethrough, a generally flat plate positioned insaid housing and having its two longest Vdimensions extending radiallyacross the bore of said housing and a sleeve rotatably disposed in saidhousing downstream of said plate, said sleeve having a pair ofupstanding arcuate shoulders abutting the under surface of said plateand a central restricted orice directly downstream said plate, saidplate and said shoulders cooperating to dene a passage for fluid beneathsaid plate to said orice and being capable of relative rotationalmovement about the axis of the bore of said housing to vary the path offluid ilow to said orifice.

7. An adjustable spray nozzle comprising a housing having an internalbore adapted for the flow of fluid therethrough, an annular ring seatedin said nozzle and having a central bore aligned with that of saidhousing, said ring being xed against relative movement in said housingand having opposed slots formed in its lower annular face, a sleeverotatably supported within said housing and defining a restricted oricealigned with said bore for fluid flow through said housing downstream ofsaid ring, said sleeve having a pair of upstanding shoulders extendingtoward said ring upstream of said orifice, an elongated plate seated onsaid shoulders with its under surface in flatwise contact therewith andhaving its longest dimension extending radially across the housing borein a p-lane normal to the path of fluid flow therethrough, said platecooperating with said shoulders to denne a passage for fluid betweensaid shoulders downstream of said plate and upstream of said oriflceandhaving projections formed in the upper face for insertion into the slotsin said ring to prevent rotation of said plate within the housing, andmeans for eiecting rotation of said sleeve relative to said plate.

8. In an adjustable spray nozzle including a ball member secured to asource of fluid under pressure and having a centrally extending aperturefor the passage of fluid therethrough, the improvements of an internallythreaded nut mounted on said ball for swivelling movement, a hollow bodyportion having one end threadedly retained in said nut and havingstepped internal shoulders formed therein, a seal ring mounted on one ofsaid shoulders in sealing contact With said ball, an annular ringmounted on a second of said shoulders in sealing contact with said sealring-andhaving ,slotsformedf in Aits vlower end face, acylindricalsleeve `having an annular shoulder formed about one end bottomed on athirdone-ofjsadbodyshoulders and having a centrally `located restrictedorifice-formed internally of said sleeve,.said'sleeve/havinga pluralityj ofstepped apertures in communication with said orice and-increasingvindiameter downstream f 'said orifice, a pair of upstanding shoulders onsaidsleeve upstream `of said oriilce, an elongated plateseated on vsaidupstanding shoulders and 'l'i'avingff' its two greatest .dimensionsextending ifnormfallyto the pathiof viluid ow through the nozzle, said{plate l. having upstanding projections insertedirito the slots formedin saidannular ;rin'g, and means extending exteriorly of said.bodypor-tionand,engaging .said Isleeve for effecting`re'lativerotationv between said plate and said shoulders.

9. In an adjustable nozzle, means for controlling the flow of fluidthrough an apertured housing comprising an elongated baille memberpositioned in the housing and having its greatest dimension extending ina plane normal to the direction of fluid flow through the housing andflow controlling means in said housing providing a pair of separatearcuate supporting shoulders engaging said baille member and beingrotatable relative thereto, said arcuate supporting shoulders havingplane flow directing side surfaces downstream of said baille member,said baille member having opposed recessed sides serving to divide fluidflow through the housing into a plurality of separate streams and theflow directing surfaces of said shoulders cooperating with said memberto direct said streams through said housing in a spiral path determinedby the relative positions of said member and said surfaces.

10. In a nozzle, means for controlling the flow of liquid through thebore of a housing having a discharge outlet comprising a baille member`positToned in the housing and having its greatest dimension extendingnormal to the flow of fluid through the housing upstream of said outlet,and flow controlling means in said housing providing a pair ofprojecting shoulders extending along the path of liquid flowtherethrough and abutting said baille member, said baille member andsaid shoulders being relatively rotatable about the axis of said boreand said shoulders having flow directing side surfaces extendingdownstream from said baffle member, said baffle member serving to dividefluid flow through the housing into a plurality of separate streams andthe side surfaces of said shoulders cooperating with said baille memberto direct said streams through said housing in a spiral directiondetermined by the relative angular position of said baille member andsaid shoulders.

ll. In an adjustable spray nozzle provided with an axial bore adaptedfor the flow of iluid therethrough, the improvement of a baille discextending radially across said bore, said disc having flat faces andarcuate portions removed from opposing curved edges thereof, an axiallybored sleeve carried by said housing downstream of said disc and havinga pair of arcuate upstanding shoulders engaging said disc and definingplane flow-directing side surfaces directly downstream of said disc, andmeansfor eifecting relative movement between said disc and said sleeveto change the path of fluid flow about 'saidgdisc between s ai dshoulder side surfaces and'through the hereof said-sleeve.

12. In an adjustable s pray'nozz'le having`V an Y axially bored housingadapted tothe ow of fluidtherethrough, `the improvement of a'disc havingflat-.faces extending in a plane lying normal to .the path'of udflowthrough said housingand having arcuate portions removed from opposingVcurved edges thereof, a sleeve rotatably mounted in saidhousingdownstream of said disc, said sleeve having a pair of arcuate shoulderspro- Y Yjectingv from the` sleeve thereof for abutment against'one faceof said disc and having a ref duced orice downstream of said disc, andmeans for rotating said'sleeve relativeto said discjto bring saidshoulders into and out of registry with those portions of said disc fromWhichthe arcs have beenf removed to changeV the path'of fluid now-aboutsaid dise to said orifice. Y Y VCLARENCE R. CURTIS.V

A VREFERNCESCITED The 'following referenoes are of I record in the fileof this patent: Y

